Make composed messages actually reach the wire: broadcastChatMemos sends the
header + payload as two 0-value memo outputs to the peer's z-address (header
first, the lower memo position), on both variants.
- chat_outgoing: chatSendOutputs(memos, utf8Prefix) — the pure, testable memo
encoder. Full-node memos get a "utf8:" prefix (dragonxd rejects raw JSON and
then UTF-8-encodes on-chain, byte-identical to SilentDragonXLite's
Memo::from_str); the payload is NOT double-hex. Lite memos are raw UTF-8 (the
backend does Memo::from_str directly). Header is always output 0.
- App::broadcastChatMemos: full-node builds a two-recipient z_sendmany array
(amount 0, from the spendable reply z-address, default fee) via submitZSendMany
with markFeeGapRetry=true — deliberately, to suppress the fee-gap auto-retry,
which rebuilds a single-recipient tx and would drop the payload output. Lite
routes to broadcastChatMemosLite (two 0-value LiteSendRecipients, raw memos;
the backend accepts duplicate addresses + 0-value for exactly this pattern).
- Encoding + design established by a four-codebase mapping (wallet, daemon, SDXL,
lite backend) and an adversarial review of the wiring (0 confirmed findings).
- Tests: chatSendOutputs (utf8:-prefix + header-first for full-node, raw for
lite) + on-chain round-trip (strip "utf8:" -> the harvest parser re-pairs and
decrypts).
Remaining as a LIVE test (cannot be proven from source): that dragonxd returns
the memo under memoStr verbatim, that recipient-array order maps to note
position, that a 0-value memo-only tx relays, and full SDXL<->DragonX interop.
Gated by DRAGONX_ENABLE_CHAT (default OFF). Verified: Linux + Windows(mingw)
build with chat ON, ctest 100%, hygiene clean; caches restored to the OFF default.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Add the outgoing side of HushChat: compose messages and start conversations.
The wire construction is the byte-exact inverse of the receive parser and is
proven by a self-consistent round-trip (build → parse → decrypt).
- src/chat/chat_outgoing.{h,cpp} (pure): buildOutgoingMessage encrypts via
encryptOutgoing and buildOutgoingContactRequest carries plaintext; both emit
the header memo JSON ({h,v,z,cid,t,e,p}, which nlohmann serializes
alphabetically to match SilentDragonXLite) + the payload memo, validating the
512-byte memo limit, the 64-hex peer key, and the "no leading '{'" rule for
request text. My public key goes in header "p"; the peer's key is the
encryption recipient.
- ChatService: composeMessage/composeContactRequest (encrypt with the held
identity) + recordOutgoing (echo an Outgoing ChatMessage into the store + DB —
we never harvest our own sends, so this is the only local record).
- App: sendChatMessage(cid,text) sources the peer z-addr + public key from the
conversation, composes, and records a random-id echo; startChatConversation
(zaddr,text) mints a random cid + composes a plaintext contact request;
chatReplyZaddr() picks a spendable z-addr. broadcastChatMemos() is the Phase-5
transport seam (network delivery + real-SDXL interop verification land there).
- Chat tab: a message composer (shown once the peer's key is known, else a
"waiting for reply" hint) + a "New conversation" modal that sends a contact
request to a z-address.
- Tests: outgoing round-trip through the receive parser + decrypt, contact-request
passthrough, validation guards, and ChatService compose + recordOutgoing echo.
Adversarially reviewed (crypto/interop, secret hygiene, logic, UI) — 0 findings.
Gated by DRAGONX_ENABLE_CHAT (default OFF). Verified: Linux + Windows(mingw)
build with chat ON, ctest 100%, hygiene clean; caches restored to the OFF default.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
